13F Filings History of MASON CAPITAL MANAGEMENT LLC

Latest 13F report
Q4 2025 - 17 Feb 2026
Value $
$561,604,846
Signature - Title
John Grizzetti - Chief Operating Officer
Location
New York, NY
Summary
This page shows a list of all the recent 13F filings made by MASON CAPITAL MANAGEMENT LLC. Form 13F is required to be filed within 45 days of the end of a calendar quarter. MASON CAPITAL MANAGEMENT LLC reported 9 stock holdings with total value $561,604,846 as of Q4 2025. Top holdings included ATS, BKD, SOLS, CCO, and JBS.

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Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Filing Time
Q4 2025 9 $561,604,846 +$78,625,216 -$42,116,850 +$36,508,366 ATS, BKD, SOLS, CCO, JBS 13F-HR 17 Feb 2026, 16:01
Q3 2025 6 $491,353,424 +$67,799,068 -$3,565,250 +$64,233,818 ATS, KVUE, BKD, CCO, MLAB 13F-HR 14 Nov 2025, 06:28
Q2 2025 4 $511,531,027 $0 -$24,247,800 -$24,247,800 ATS, CCO, CCIR, SBNY 13F-HR 14 Aug 2025, 16:01
Q1 2025 5 $427,192,325 +$44,065,709 -$1,901,798 +$42,163,911 ATS, PARA, CCO, CCIR, SIGNATURE BANK 13F-HR 15 May 2025, 16:05
Q4 2024 4 $470,516,744 $0 -$50,219,866 -$50,219,866 ATS, CCO, RC, SBNY 13F-HR 14 Feb 2025, 16:01
Q3 2024 6 $502,600,502 +$37,959,990 -$27,723,349 +$10,236,641 ATS, MDRX, B, CCO, RC 13F-HR 14 Nov 2024, 16:21
Q2 2024 6 $538,215,130 +$18,207,965 -$20,051,039 -$1,843,074 ATS, B, CCO, MDRX, IIIV 13F-HR 14 Aug 2024, 16:38
Q1 2024 6 $73,765,366 +$20,662,398 -$77,114,560 -$56,452,162 B, SDRL, CCO, MDRX, SBNY 13F-HR 15 May 2024, 17:28
Q4 2023 7 $893,879,793 +$68,557,286 -$352,994,390 -$284,437,104 ATS, XLI, B, SDRL, CLBRU 13F-HR 15 Feb 2024, 09:17
Q3 2023 8 $1,162,478,703 +$225,724,143 -$28,110,376 +$197,613,767 ATS, ATVI, VMW, CCO, XLI 13F-HR 14 Nov 2023, 17:29
Q2 2023 10 $1,009,672,390 +$950,842,186 -$245,111,233 +$705,730,953 ATS, VMW, ATVI, CCO, XLI 13F-HR 14 Aug 2023, 16:01
Q1 2023 12 $212,898,990 +$61,672,018 -$58,169,448 +$3,502,570 GEO, WFRD, XLI, MSGS, CCO 13F-HR 15 May 2023, 16:04
Q4 2022 12 $209,674,793 +$58,134,142 -$129,027,990 -$70,893,848 WFRD, GEO, MSGS, CCO, XLI 13F-HR 14 Feb 2023, 16:06
Q3 2022 12 $237,304,000 +$74,671,751 -$123,264,286 -$48,592,535 TWTR, WFRD, GEO, CCO, BTU 13F-HR 14 Nov 2022, 17:00
Q2 2022 17 $262,247,000 +$105,198,715 -$66,135,460 +$39,063,255 CXW, GEO, ASTL, VVV, WFRD 13F-HR 15 Aug 2022, 17:23
Q1 2022 16 $313,340,000 +$110,767,972 -$43,175,947 +$67,592,025 CCO, CXW, VVV, BHC, ASTL 13F-HR 16 May 2022, 16:05
Q4 2021 7 $208,877,000 +$72,206,000 -$99,409,666 -$27,203,666 CCO, CXW, ASTL, BHC, OXYWS 13F-HR 14 Feb 2022, 16:39
Q3 2021 32 $215,784,000 +$59,410,165 -$287,074,846 -$227,664,681 CCO, CXW, LEGO, GEO, OXYWS 13F-HR 15 Nov 2021, 16:02
Q2 2021 31 $450,075,000 +$260,023,444 -$115,283,537 +$144,739,907 HLF, GLD, CCO, CXW, XEC 13F-HR 16 Aug 2021, 16:03
Q1 2021 23 $267,984,000 +$144,451,329 -$154,471,032 -$10,019,703 HLF, CCO, RSP, CXW, IFF 13F-HR 17 May 2021, 16:03
Q4 2020 17 $279,830,000 +$142,859,270 -$87,535,814 +$55,323,456 HLF, GLD, CCO, PSTH, OXYWS 13F-HR 16 Feb 2021, 15:52
Q3 2020 10 $196,486,000 +$23,256,957 -$169,087,953 -$145,830,996 JEF, GLD, CCO, PSTH, TCO Restatement 01 Dec 2020, 08:55
Q2 2020 10 $327,322,000 +$259,593,000 -$262,123,582 -$2,530,582 JEF, GLD, GDX, CCO, BATRK 13F-HR 14 Aug 2020, 08:46
Q1 2020 11 $314,423,000 +$229,774,464 -$106,723,496 +$123,050,968 AGN, UNIT, BATRK, BA, XRX 13F-HR 15 May 2020, 09:10
Q4 2019 8 $291,338,000 +$31,733,816 -$185,162,762 -$153,428,946 MSGS, CCO, UNIT, BATRK, IHRT 13F-HR 14 Feb 2020, 15:46
Q3 2019 9 $402,065,000 +$101,117,973 -$176,760,000 -$75,642,027 OXY, MSGS, UNIT, CCO, BATRK 13F-HR 14 Nov 2019, 09:53
Q2 2019 10 $523,650,000 +$267,416,828 -$197,305,769 +$70,111,059 MSGS, OXY, FOXA, APC, UNIT 13F-HR 14 Aug 2019, 09:23
Q1 2019 8 $465,374,000 +$378,193,000 -$551,629,252 -$173,436,252 FOXA, VSM, MSGS, UNIT, XRX 13F-HR 15 May 2019, 08:34
Q4 2018 9 $602,041,000 +$138,953,000 -$685,613,841 -$546,660,841 FOXA, DELL TECNOLOGIES INC, REZI, XRX, BATRK 13F-HR 14 Feb 2019, 08:29
Q3 2018 14 $1,176,589,000 +$173,424,773 -$495,323,412 -$321,898,639 FOXA, DVMT, BBL, XRX, EQT 13F-HR 15 Nov 2018, 09:42
Q2 2018 19 $1,494,922,000 +$819,528,498 -$458,044,772 +$361,483,726 FOXA, DPS, BBL, DVMT, XRX 13F-HR 14 Aug 2018, 15:01
Q1 2018 15 $1,074,350,000 +$707,251,676 -$346,010,655 +$361,241,021 DVMT, BBL, DPS, XRX, SBGI 13F-HR 15 May 2018, 14:02
Q4 2017 14 $740,447,000 +$419,087,204 -$473,487,314 -$54,400,110 NXPI, BBL, CZR, SBGI, FG 13F-HR 14 Feb 2018, 14:04
Q3 2017 18 $775,792,000 +$252,433,114 -$372,316,553 -$119,883,439 AABA, BBL, NXPI, MPC, TWX 13F-HR 14 Nov 2017, 14:41
Q2 2017 19 $849,546,000 +$407,986,962 -$211,488,860 +$196,498,102 RAI, AABA, MPC, TWX, BBL 13F-HR 14 Aug 2017, 15:00
Q1 2017 15 $641,180,000 +$125,141,030 -$1,448,163,821 -$1,323,022,791 RAI, YHOO, TWX, MPC, BATRK 13F-HR 15 May 2017, 14:01
Q4 2016 26 $1,899,556,000 +$1,264,790,251 -$573,182,154 +$691,608,097 POWERSHS DB US DOLLAR INDEX, RAI, CBS CORP NEW, AMAZON COM INC, MSGS 13F-HR 14 Feb 2017, 12:07
Q3 2016 18 $1,176,393,000 +$345,566,985 -$2,296,427,813 -$1,950,860,828 YHOO, MSGS, ALLERGAN PLC, CBS CORP NEW, TAP 13F-HR 14 Nov 2016, 18:35
Q2 2016 18 $3,095,433,000 +$2,280,287,549 -$791,273,392 +$1,489,014,157 SPDR GOLD TRUST, EMC, MONSANTO CO NEW, MSGS, ALLERGAN PLC 13F-HR 15 Aug 2016, 16:07
Q1 2016 17 $1,574,361,000 +$531,815,709 -$269,885,782 +$261,929,927 YHOO, EMC, MSGS, RAI, CVC 13F-HR 16 May 2016, 16:07
Q4 2015 14 $1,270,204,000 +$477,915,436 -$1,908,525,156 -$1,430,609,720 YHOO, EMC, MSGS, HUBB, TAP 13F-HR 16 Feb 2016, 16:21
Q3 2015 14 $2,571,601,000 +$1,130,044,836 -$1,775,521,975 -$645,477,139 YHOO, MSGZZZZ, TAP, RAI, TWC 13F-HR 16 Nov 2015, 16:13
Q2 2015 19 $3,648,843,000 +$1,203,056,619 -$2,257,504,763 -$1,054,448,144 RAI, R108, FOX, MSGZZZZ, AIG 13F-HR 14 Aug 2015, 16:23
Q1 2015 23 $4,697,711,000 +$1,981,510,232 -$1,379,460,270 +$602,049,962 A309PS, YPF, FOX, MSGZZZZ, R108 13F-HR 15 May 2015, 16:05
Q4 2014 22 $4,213,153,000 +$1,162,868,282 -$5,160,595,461 -$3,997,727,179 DOW CHEM CO, EMC, FOX, YPF, MSGZZZZ 13F-HR 17 Feb 2015, 16:19
Q3 2014 45 $8,143,652,000 +$3,229,822,470 -$2,700,548,805 +$529,273,665 FOX, YPF, ET, DOW, MSGZZZZ 13F-HR 14 Nov 2014, 16:11
Q2 2014 43 $7,522,671,000 +$3,850,548,599 -$1,137,838,869 +$2,712,709,730 FOX, ET, YPF, AGN, APC 13F-HR 14 Aug 2014, 16:14
Q1 2014 27 $4,501,308,000 +$2,254,031,012 -$1,466,328,497 +$787,702,515 ET, YPF, F102PS, TMO, FRX 13F-HR 15 May 2014, 15:34
Q4 2013 26 $3,951,074,000 $0 $0 $0 ET, VOD, YPF, F102PS, APC 13F-HR 14 Feb 2014, 16:41